What is surveillance, and how is it used in covert operations? Provide examples of successful and unsuccessful surveillance operations.

Surveillance refers to the process of observing and monitoring people, objects, or locations for the purpose of gathering information or intelligence. Surveillance is a critical component of covert operations, as it allows operatives to gather information about the enemy's activities and plans without being detected. Surveillance techniques can vary widely depending on the nature of the operation, but often involve the use of specialized equipment such as cameras, listening devices, and other monitoring tools. Successful surveillance operations are those that are able to gather valuable information about the enemy's activities and plans without being detected. For example, dur....